*4.2. Recognizing Information Time*

The present data indicated in the literature that concerns time of recognizing information on failures *t*rec.infor is not fully explored. However, it is worth noting that this time interval may take 75% of the time of the PS restoration. The Delphi method was also used to determine this time, and there were also 20 experts.

The results of the calculations are summarized in Table 2, the distribution of expert assessments given to this time interval is shown in Figure 3.

**Figure 3.** The histogram that represents the assessment of experts concerning the distribution of the recognizing information time.

The mathematical expectation of a time of recognizing information on failures was indicated as 2.94 h (a concordance coefficient is 0.79).


